TOPIC:

is there a manifold, or correct carb that will work to make this 4 carb system into a one? i thought i had seen if before on here but i cant find it again. I'm looking to possible move into a turbo setup down the line on the 650. I tried looking at 750turbo.com but im very unfamiliar with it and couldnt find much. thanks

you can make your own(been done, I remember seeing a copper pipe version on here once) or get part of a turbo kit intake manifold (remember the 650/750/900/1000/1100 all have the same intake spacing) the 750 turbo was FI, and doesnt have a "1-4" intake I dont think
Mr.Turbo Intake Manifold for $195. not sure what carb you should go with, someone else will.....
Scott

ebay out a mikuni hsr42, 45, or 48, depending on your build level.

figure a turbo bike can run plenty of boost with a 42, and have some overhead, why not a single carb setup on an N/A bike?

it's a bellcrank, accel pump setup.

i actually think it might work really well.

--r

solorus, did u mean that a one carb setup might work really well? id run the bike n/a for a little while before the turbo is complete

thank you for that link 77kz650. so a mikuni hsr42 should bolt right up to that correct?

man, i need to really read these posts before i respond...

i run an hsr42 on my 1075 atp turbo motor. it works *very* well. many other folks with turbo's are running them around here. street driveability, good idle characteristics, plenty of fuel flow for some healthy boost levels.

these are used in the draw-thru method for turbocharging. in front of the turbo. they won't be as effective as a blow-thru, as other issues crop up.

you could buy the hsr, run the manifold for the tc, and probably have a lot of fun with it until you source a rajay and exhaust system for it. then you will set up the fuel system, re-jet the carb, put in the pressurized needle and seat, and be good to go.

that help some?

--r

sorry i might just be reading it wrong solo. did u say the hsr42 works better in this order carb-turbo-intake to motor? idk why i dont understand that post, im a little slow today sorry

no problem, you pretty much have it.

a draw-thru system has the carb before the compressor.

so, carb/compressor/engine(or intake) is correct.

a blow thru would be compressor/carb/engine.

my ATP turbo setup runs as a draw-thru, as well as mr. turbo. that's fairly standard for carbed turbo setups.

they can be done other ways, but this seems the most effective.

this carb will probably work for your single-carb idea as well. i see no reason why it wouldn't.

--r

that actually makes a lot of sense. this way the fuel will be more pressurized and be able to hit all 4 intakes more evenly, if im not mistaken

LOL! yeah, that's pretty much it.

air/fuel mixed in carb, pressurized by compressor, shoved by the intake valves, and expelled violently out into the pipe, to skip along happily, then spin the turbine wheel, and start it all over again.

wonderful how that works, eh? 8^)

--r

haha its a vicious cycle.

you wouldnt happen to know what i would need to run for jets and tuning with a turbo would you? i was looking for either a t25 or t2, im leaning towards the t2